EUVD-2026-27368

In the Linux kernel, the following vulnerability has been resolved: ext4: handle wraparound when searching for blocks for indirect mapped blocks Commit 4865c768b563 "ext4: always allocate blocks only from groups inode can use" restricts what blocks will be allocated for indirect block based files...

CVE-2026-43065 ext4: always drain queued discard work in ext4_mb_release()

In the Linux kernel, the following vulnerability has been resolved: ext4: always drain queued discard work in ext4mbrelease While reviewing recent ext4 patch1, Sashiko raised the following concern2: If the filesystem is initially mounted with the discard option, deleting files will populate...

CVE-2026-43066

CVE-2026-43066: In Linux kernel ext4_fc_replay_inode(), iloc.bh leak could occur on error paths due to missing brelse at several failure points. The patch adds an out_brelse label before the existing out label to ensure iloc.bh is released, and also makes ext4_fc_replay_inode() propagate errors i...

CVE-2026-43066

In the Linux kernel, the following vulnerability has been resolved: ext4: fix iloc.bh leak in ext4fcreplayinode error paths During code review, Joseph found that ext4fcreplayinode calls ext4getfcinodeloc to get the inode location, which holds a reference to iloc.bh that must be released via brels...

CLSA-2026-1777614651 kernel: Fix of 52 CVEs

crypto: algifaead - Fix minimum RX size check for decryption - crypto: afalg - Fix page reassignment overflow in afalgpulltsgl - crypto: authencesn - Fix src offset when decrypting in-place - crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption - crypto: authenc - use...

ext4: avoid infinite loops caused by residual data

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SUSE CVE-2026-31446

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in updatesuperwork when racing with umount Commit b98535d09179 "ext4: fix bugon in startthishandle during umount filesystem" moved ext4unregistersysfs before flushing ssbupdwork to prevent new error work...

CVE-2026-31452

A flaw was found in the Linux kernel's ext4 filesystem. A local user could exploit a vulnerability where the truncate function, when used to expand a file beyond its inline data capacity, fails to properly convert the file to extent-based storage. This inconsistency can lead to a kernel crash BUG...

CVE-2026-31451

A flaw was found in the Linux kernel's ext4 filesystem. When processing inline data, if the data size exceeded the expected page size, it could lead to a kernel panic. This issue could be triggered by a local user with access to a specially crafted or corrupted ext4 filesystem, resulting in a...

CVE-2026-31449

A flaw was found in the Linux kernel's ext4 filesystem. A local attacker could exploit this vulnerability by providing a specially crafted or corrupted on-disk extent header. This could cause an out-of-bounds read in memory, potentially leading to information disclosure or a system crash Denial o...

CVE-2026-31446

A flaw was found in the Linux kernel's ext4 filesystem. This vulnerability, a use-after-free, occurs due to a timing issue when the updatesuperwork function attempts to access memory that has already been released during a filesystem unmount operation. A local attacker could potentially exploit...

CVE-2026-31448

A flaw was found in the Linux kernel's ext4 filesystem. When creating a directory or node, if an extent insertion fails, the system may not properly clear residual data. This can lead to a situation where both directory and extended attribute xattr blocks simultaneously use the same memory buffer...

EUVD-2026-24788

In the Linux kernel, the following vulnerability has been resolved: ext4: publish jinode after initialization ext4inodeattachjinode publishes ei-jinode to concurrent users. It used to set ei-jinode before jbd2journalinitjbdinode, allowing a reader to observe a non-NULL jinode with ivfsinode still...

CVE-2026-31446 ext4: fix use-after-free in update_super_work when racing with umount

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in updatesuperwork when racing with umount Commit b98535d09179 "ext4: fix bugon in startthishandle during umount filesystem" moved ext4unregistersysfs before flushing ssbupdwork to prevent new error work...

PT-2026-34354

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 ext correct indexes function, which corrects index entries when the first extent in a leaf is modified. The function fails to validate that the p idx pointer...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013629)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013629 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in estreesearch caused by bad quota inode We got a issue as fllows:...

PT-2026-34352

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ext4 file system where the kernel fails to reject mounting when bigalloc is used in conjunction with s first data block not equal to 0, a configuration that is not...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-010776)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010776 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: detect invalid INLINEDATA + EXTENTS flag combination syzbot reported a BUGON in...

USN-8188-1: Linux kernel (HWE) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Cryptographic API; - Drivers core; - Bluetooth drivers; - DMA engine...

USN-8188-1 linux-hwe-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Cryptographic API; - Drivers core; - Bluetooth drivers; - DMA engine...